Electric socket.



G. C, KNAUFF.

ELECTRIC SOCKET. APPucAnbM FILED SEPT. 9. lane Patented Oct. 17, 1916.

UNITED STATES PATENT OFFICE.

GEORGE C. KNAUFF, OF CHICAGO. ILLINOIS.

ELECTRIC SOCKET.

Application filed September 9, 1915.

To all wlwm it may (fOltt'i'f'ltJ Be it known that I. (luomm t. Kxirrr,a citizen of the United States. residing at Chicago, in the county oftook and State of Illinois, have invented certain new and useful im'irovcmcnts in Electric Hocktis: and 1 do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to electric lamp sockets or connectors, its generalobjects be ing to provide a simple and cheap construction for firl nlybut detachably securing such a socket to a support, and forsinmltaiu-oulsly securing the body member or fworks of the socket to thecasing.

More particularly, my invention aims to provide a socket constructionfronrwhich the body member may readily he removed, so as to permit aspeedy substitution of a single-pole for a double-pole mechanism orvice-verse: to provide simple and cilective means for preventing arelative rotation of the body member and the casing both with respect toeach other and with respect to the support: to provide simple means fordetachably but firmly securing the entire socket to a metal wall orother support. and preferably to provide means for simultaneouslysecuring thecasing firmlv and non rotatably to both the body member andthe support: also, to provide means for pre venting a loosening orpossible losing of the anchoring pins used for securing the body memberto the casing and the support.

Further objects will appear from the accompanying drawings, in whicFigure 1 is a partially sectioned side elevation of a single pole socketembodying my invention. Fig. 2 is an end view. taken from the line 22 bfFig. 1 with the nut and body of the socket removed. Fig. 3 is an endview of the socket with the nut removed. 'Fig. l is a fragmentary sideview of a somewhat simplified embodiment. Fig. 5 is an end view of theembodiment of Fig. 4 Fig. i is an end view of the embodiment of Fig. 4when fitted with a body member carrying two wire terminals.

My invention may be embodied with substantially equal advantages insinglepole sockets having one circuit-terminal grounded to the socketcasing and in double-pole sockets having the circuit insulated fromSpecification of Letters Patent.

I'uicntcdflct.1T,HHG.

Serial No. 49.698.

the casing and may also he carried out cithcr with or without anauxiliary mcmbcr ||ctween the locking nut and the support to which thesocket is sccurcd. 'lhus. l igs. l to I; show cmbmlimcnis of my inwnlionsuit ble ior use on automobile lighting cir cuits wh rc onc terminal oithe circuit is grounded to the casing l ol the sockct. while thc otherterminal 2 is insulatccl (hr-r1 from y the body ii. The casing l isequipped at one cml with bayonct catch formations l for interlocking thccasing with a connector plug or othcr terminal ca 'l'icr in and at itsother cud has an out wardiy ihrcadcd portion (3 extending through thesupport 7 by which the socket oi"(-onnect r is to be carried. Thissupport may he a portion of a lamp casing. rcllccior. dash-hoard or thelike and in thc cmhodinut-1d of Figs. 1 and 2 has a pair of tongues 8proje ting radially inward ol' the pcrl'oration .l through which thesocket portion 6 extends. This latter portion is ccpiippwl withlongitudinal slots cntcrcd by the tongues H. which tongues engage thewalls of said slots. to prevent thc sockcl casing from rotating withrespect to the support 7. The insulating body ll ol the sockci orconnector is slidablc within the casing l and has fast upon it a pair ofpins 1U projecting through the said longitudinal slots and ex tendingbeyond the outer surface of the socket casing. 'lhcsc pins engage oneface l the support 7. while the opposite face is engaged by a radiallyoutwardly pro jecting portion oi the casing. such as a head 11. therebypermitting the support to he clamped between said head and pins bytightening a nut 12 threaded upon the rear end ti ol' the socket casing.\Vhcn the casing is thus clamped to the support. the clamping of thepins between the support and the nut 1''! simultaneously anchors thebody member of the socket with respect to the casing. so that no otherfastcuing will be needed for securing thc insulating body (and the wireterminal or terminals carried by the latter) to the casing.

To prevent :1 possible loosening ol the pins 10 from the insulating bodyinto which they may merely be driven without being threaded. theprojecting ends of these pins may be housed by recesses in a washer 123interposed between the support '7 and the nut 12. Or, the correspondingrecesses may be formed in the support 7 as shown in Fig.

5. in which case both the tongues R and the washer 13 may be omitted andthe nut 12 may be drawn up directly against the sup port 7 as shown inFig. 4. In either case, it will be obvious that the single fasteningmember 1; secures both the body or works of the socket and the supportto the casin and that by removing this nut the structure may quickly bedisassembled. Thus, the socket may readily be detached from the supportto permit the latter to be plated or otherwise finished, therebyavoiding the dilliculties heretofore encountered when socket casingswere soldered or brazed to the. metal parts supporting the same. Soalso, the remoring of the single nut readily permits the substitutionfor a single-pole socket interior of one equipped for double-pole use,when it is desired to change the lamps or connector plugs used with myinvention. However, while I have shown and described the clamping meansof my invention as including a nut threaded upon the "using, and haveshown the outward projection upon the socket in the form of a head, I donot wish to be limited to these or other details of the constructionherein disclosed, it being obvious that the same might be modified inmany ways without departing from the spirit of my invention.

1 claim as my invention:

1. The combination with a support having a pert'oralioin of a casingprojecting through said perforation and equipped with a longitudinalslot, a body member slidably housed by the casing. an element carried bysaid member and projecting into said slot. aml means for securing saidelement to the support.

2. The combination with a support having a perforation, of a casingprojecting through said perforation and equipped with a longitudinalslot, a body member slidably housed by the casin an element tlll'l'l((lby said member and projecting through said slot. and means carried bythe casing and engaging said element for simultaneously anchoring thecasing to the support and the body member.

3. The combination with a support having a perforatioln of a casingprojecting through said perforation aml equipped with a longitudinalslot a body member slid ably housed by the casing, an element carried bysaid member and projecting into said slot. and means for securing saidelement to the support. and means for prevents ing a movement of saidelement radially oi. the casing.

'-l. The combination with a support having a perfo ation, of a casingprojecting through said perforation and equipped with a longitudinalslot. a body member slidably housed by the casing. and means associatedwith said slot for preventing relative rotation of the casing. supportand body memher.

5. Means for non-rotatably securing both a longitudinally slotted socketcasing and the body member of a socket to a supporting member equippedwith a perforation entered by said casing and with a projection enteringa slot of the casing, including an element carried by the body memberand projecting through said slot beyond the exterior of the casing uponone side oi the supporting member, an enlargement carried by the casingupon the opposite side of the supporting member, and means for clampingthe supporting member between said element and said enlargement.

6. Means for non-rotatably securing both a longitudinally slotted socketcasing and the body meml r of a socket to a supporting member equippedwith a perforation entered by said casing and with a projection enteringa slot of the casing. including an element carried by the body memberand projecting through said slot beyond the exterior of the casing uponone side of the supporting member: an enlargement carried by the casingupon the opposite side of the supporting member, and means threaded uponthe casing for clamping the supporting member between said element andsaid enlargement.

7. The combination with a support hav ing a perforation, of a casingprojeu ng through said perforation and equipped with a longitudinalslot. a body member slidabiy housed by the casing an element carried bysaid member and projecting into said slot, and means for securing saidelement to the support. and means associated with said slot and saidelement for preventing rotation of the casing with respect to thesupport and the body member.

8. The combination with a support having a perforation. of a casingprojecting through said perforation and equipped with a longitudinalslot. a body member slidably housed by the casing. an element carried bysaid member and projecting into said slot. and means for sinmltaneouslysecuring the casing to both the support and the body member.

2), The combination with a support hav ing a perforation, of a casingprojecting through said wrl'oration and equipped with a longitudinalslot at body member slidably housed by the casing. an element carried bysaid member and projecting into said slot, and means for clamping thesupport be tween portions of the body member and easing.

GEORGE C. KNAFF I

